18QHTF21-13.5845-PD

Overview

The 18QHTF21-13.5845-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 13.5845 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, No Lead package, designed for surface mount applications.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby functionality to reduce power consumption
• Utilizes a leadless surface mount package for PCB integration

Applications

• Digital signal processing circuits
• Communication equipment timing references
• Embedded system clock generation

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD package dimensions fit within the designated footprint on the printed circuit board layout.

Selection Notes

Select this component when a precise 13.5845 MHz reference is required for low-voltage digital systems. The LVCMOS output ensures compatibility with standard logic families. Consider the standby feature if power efficiency is a critical design constraint for the application environment.

Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of surface-mount crystal oscillators. The series offers various frequencies and voltage options. The 18QHTF21 designation indicates a standard XO format with a small form factor suitable for space-constrained electronic designs requiring reliable timing signals.

Replacement Considerations

Direct substitutes must match the 13.5845 MHz frequency, 1.8V supply, and LVCMOS output. Verify pin compatibility and package dimensions for equivalent components from other manufacturers offering similar surface-mount oscillator solutions.